Carbon monoxide (commonly known as gas)
Properties: colorless, odorless gas, slightly lighter than air
Poisoning route: inhalation
Symptoms: headache and dizziness, tinnitus and nausea, difficulty in breathing, weakness in the abdomen, drowsiness, coma, limb paralysis, and eventually death.
Source of contamination: Fire or oxygen-deficient combustion in household stoves.
Natural gas
Properties: Colorless gas with a slight odor.
Poisoning route: inhalation
Symptoms: Headache, difficulty in breathing, weakness in the abdomen, unconsciousness, and eventually death.
Source of contamination: Liquefied petroleum gas (LPG) tanks, natural gas pipeline leaks or well blowouts.
Formaldehyde
Properties: colorless and highly volatile liquid, its vapor has a pungent odor.
Poisoning route: inhalation, eye irritation
Poisoning symptoms: tearing, sore throat, nausea, vomiting, coughing and wheezing.
Pollution source: volatilized from decoration materials and adhesives after house renovation
Pesticide
Properties: liquid, usually prepared with water and used, volatile, with a special odor
Poisoning route: inhalation, eye irritation
Symptoms of poisoning: blurred vision, chest tightness, headache, difficulty in breathing, sweating, incontinence and coma in severe cases.
Source of pollution: volatilized into the air after use in farmland
Post time: Feb-21-2024